Correct pothole deletion function

MapView/main.py

@@ -14,18 +14,31 @@ line_layer_colors = [
     [1, 0, 1, 1],
 ]
 
+
+def get_lat_lon(point: dict[str, float] | list[float] | tuple[float, float]) -> tuple[float, float] | None:
+    if isinstance(point, dict):
+        lat = point.get("lat")
+        lon = point.get("lon")
+    else:
+        lat, lon = point
+
+    if lat is None or lon is None:
+        return None
+    return lat, lon
+
+
 class MapViewApp(App):
     def __init__(self, **kwargs):
         super().__init__(**kwargs)
 
-        self.mapview = None
+        self.mapview: MapView | None = None
         self.datasource = Datasource(user_id=1)
         self.line_layers = dict()
         self.car_markers = dict()
 
         # додати необхідні змінні
-        self.bump_markers = []
-        self.pothole_markers = []
+        self.bump_markers: list[MapMarker] = []
+        self.pothole_markers: list[MapMarker] = []
 
     def on_start(self):
         """
@@ -90,13 +103,14 @@ class MapViewApp(App):
         if user_id == 1:
             self.mapview.center_on(lat, lon)
 
-    def set_pothole_marker(self, point):
-        if isinstance(point, dict):
-            lat = point.get("lat")
-            lon = point.get("lon")
-        else:
-            lat, lon = point
+    def map_lat_lon_to_pothole(self, lat: float, lon: float) -> MapMarker | None:
+        click_tolerance = self.mapview.zoom * 10
+        flt = filter(lambda marker: abs(lat - marker.lat) + abs(lon - marker.lon) < click_tolerance,
+                     self.pothole_markers)
+        return next(flt)
 
+    def set_pothole_marker(self, point):
+        lat, lon = get_lat_lon(point)
         if lat is None or lon is None:
             return
 
@@ -110,12 +124,7 @@ class MapViewApp(App):
         self.pothole_markers.append(marker)
 
     def set_bump_marker(self, point):
-        if isinstance(point, dict):
-            lat = point.get("lat")
-            lon = point.get("lon")
-        else:
-            lat, lon = point
-
+        lat, lon = get_lat_lon(point)
         if lat is None or lon is None:
             return
 
@@ -128,6 +137,16 @@ class MapViewApp(App):
         self.mapview.add_marker(marker)
         self.bump_markers.append(marker)
 
+    def delete_pothole_marker(self, point):
+        lat, lon = get_lat_lon(point)
+        if lat is None or lon is None:
+            return
+
+        pothole = self.map_lat_lon_to_pothole(lat, lon)
+        if pothole:
+            self.mapview.remove_marker(pothole)
+            self.pothole_markers.pop(self.pothole_markers.index(pothole))
+
 
     def build(self):
         """